Product Features

In shooting, there is no substitute for raw power. When you hit your target, you want to put him down with one shot not three. If you find yourself in a pinch, a rifle made with this PWS MK107 Piston 7.62 x 39 7.75″ Complete Upper Triad will help ensure you can accomplish just that.

Named the “Diablo,” the MK107 upper was designed for use in place of MP5 style weapons. Rather than use a submachine gun and hope for the best, this compact upper will allow you to complete your build and provide for a great tactical option. The low weight of the design and the high quality components help to ensure you get the best performance when it matters most. If you do need a follow-up shot, the Triad 556 muzzle device helps to control your aim more and diminishes muzzle flash, keeping you on target effectively. Made to be compatible with any MilSpec lower, this upper will allow you to complete your rifle build in no time.

When you want a rifle that delivers with exceptional stopping power, then look no further than this option from Primary Weapons Systems.